Sebastian Redl [Mon, 23 Jan 2012 22:09:39 +0000 (22:09 +0000)]
Minor fixups for auto deduction of initializer lists.
Fix some review comments.
Add a test for deduction when std::initializer_list isn't available yet.
Fix redundant error messages. This fixes and outstanding FIXME too.
Kaelyn Uhrain [Mon, 23 Jan 2012 20:18:59 +0000 (20:18 +0000)]
In CorrectTypo, use the cached correction as a starting point instead.
Previously, for unqualified lookups, a positive cache hit is used as the
only non-keyword correction and a negative cache hit immediately returns
an empty TypoCorrection. With the new callback objects, this behavior
causes false negatives by not accounting for the fact that callback
objects alter the set of potential/allowed corrections. The new behavior
is to seed the set of corrections with the cached correction (for
positive hits) to estabilishing a baseline edit distance. Negative cache
hits are only stored or used when either no callback object is provided
or when it returns true for a call to ValidateCandidate with an empty
TypoCorrection (i.e. when ValidateCandidate does not seem to be doing
any checking of the TypoCorrection, such as when an instance of the base
callback class is used solely to specify the set of keywords to be accepted).
Douglas Gregor [Mon, 23 Jan 2012 15:59:30 +0000 (15:59 +0000)]
Handle pseudo-object expressions (and any other placeholder
expression) when code-completing member access expressions. Fixes
<rdar://problem/10717172>.
Douglas Gregor [Mon, 23 Jan 2012 15:29:33 +0000 (15:29 +0000)]
Downgrade C++11 narrowing conversion errors to warnings default-mapped
to an error, so that users can turn them off if necessary. Note that
this does *not* change the behavior of in a SFINAE context, where we
still flag an error even if the warning is disabled. This matches
GCC's behavior.
David Blaikie [Mon, 23 Jan 2012 04:58:54 +0000 (04:58 +0000)]
Rename -Wswitch-enum-redundant-default to -Wswitch-redundant-default.
This is for consistency, since the flag is actually under -Wswitch now, rather
than -Wswitch-enum (since it's really valuable for the former and rather
orthogonal to the latter)
David Blaikie [Mon, 23 Jan 2012 04:46:12 +0000 (04:46 +0000)]
Implement -Wswitch-enum correctly.
Clang previously implemented -Wswitch-enum the same as -Wswitch. This patch
corrects the behavior to match GCC's. The critical/only difference being that
-Wswitch-enum is not silenced by the presence of a default case in the switch.
Nico Weber [Mon, 23 Jan 2012 03:19:29 +0000 (03:19 +0000)]
In ms mode, a move assignment operator shouldn't mark a copy ctor as deleted.
MSVC2010's pair class has a move assignment operator but no explicit copy
constructor, which makes it unusable without this change.
For symmetry, let move copy constructors not mark the default assignment
operator as deleted either. Both changes match cl.exe's behavior. Fixes
pr11826.
Also update the standard excerpt to point to the right paragraph.
David Blaikie [Sun, 22 Jan 2012 02:31:55 +0000 (02:31 +0000)]
Fix -Wswitch to warn about out of bounds enum cases even when there's a default
For consistency with GCC & reasonable sanity. The FIXME suggests that the
original author was perhaps using the default check for some other purpose,
not realizing the more obvious limitation/false-negatives it creates, but this
doesn't seem to produce any regressions & fixes the included test.
David Blaikie [Sun, 22 Jan 2012 01:58:03 +0000 (01:58 +0000)]
Move -Wswitch-enum to -Wswitch
This matches GCC's documented (& actual) behavior. What Clang had implemented
as -Wswitch-enum was actually GCC's -Wswitch behavior. -Wswitch is on by
default (part of -Wall) and warns if a switch-over-enum, without a default
case, covers all enum values.
-Wswitch-enum, on the other hand, does not have the default clause and should
fire even in the presence of a default. This warning is off by default.
With this change the -Wswitch-enum flag is off-by-default in Clang but has no
functionality at the moment. I'll add that in a future commit.
Francois Pichet [Sat, 21 Jan 2012 23:26:50 +0000 (23:26 +0000)]
In Microsoft Mode, disable the C++11 strict integral conversion rules for enumerator that were introduced with r148439. Otherwise MSVC headers won't compile in C++ 11 mode.
David Blaikie [Sat, 21 Jan 2012 18:12:07 +0000 (18:12 +0000)]
Add -Wswitch-enum-redundant-default.
This warning acts as the complement to the main -Wswitch-enum warning (which
warns whenever a switch over enum without a default doesn't cover all values of
the enum) & has been an an-doc coding convention in LLVM and Clang in my
experience. The purpose is to ensure there's never a "dead" default in a
switch-over-enum because this would hide future -Wswitch-enum errors.
The name warning has a separate flag name so it can be disabled but it's grouped
under -Wswitch-enum & is on-by-default because of this.
The existing violations of this rule in test cases have had the warning disabled
& I've added a specific test for the new behavior (many negative cases already
exist in the same test file - and none regressed - so I didn't add more).
Reviewed by Ted Kremenek ( http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120116/051690.html )
Anna Zaks [Sat, 21 Jan 2012 05:07:33 +0000 (05:07 +0000)]
[analyzer] Make VLA checker taint aware.
Also, slightly modify the diagnostic message in ArrayBound and DivZero (still use 'taint', which might not mean much to the user, but plan on changing it later).
Eli Friedman [Sat, 21 Jan 2012 04:52:58 +0000 (04:52 +0000)]
Add an assertion that our use-marking actually covers all uses of a variable. The assertion doesn't cover quite as much as it should, but it's a good start, at least.
Richard Trieu [Sat, 21 Jan 2012 02:59:18 +0000 (02:59 +0000)]
Fix code so that a SkipUntil will ignore semicolons when skipping a
function body. This keeps the brace count accurate to prevent
additional errors. Also, moved the caret from the brace to the function
name.
Code:
class F{ int Foo{ return 1; } };
Fixed error:
parameters.cc:1:14: error: function definition does not declare parameters
class F{ int Foo{ return 1; } };
^
1 error generated.
Old errors:
parameters.cc:1:17: error: function definition does not declare parameters
class F{ int Foo{ return 1; } };
^
parameters.cc:1:30: error: expected ';' after class
class F{ int Foo{ return 1; } };
^
;
parameters.cc:1:31: error: expected external declaration
class F{ int Foo{ return 1; } };
^
3 errors generated.
Douglas Gregor [Sat, 21 Jan 2012 00:43:38 +0000 (00:43 +0000)]
Fix the code completion string for variadic macros with more than one
argument, which was broken and very ugly (and even had a test case to
make *sure* it was broken and ugly). Fixes <rdar://problem/10609117>.
Eric Christopher [Fri, 20 Jan 2012 22:10:15 +0000 (22:10 +0000)]
When adding types to the context chain for record types, just emit
a forward declaration unless we already have a type. We can fill it in
later if it's actually used.
Enhance Lexer::makeFileCharRange to check for ranges inside a macro argument
expansion, in which case it returns a file range in the location where the
argument was spelled.
Douglas Gregor [Fri, 20 Jan 2012 16:28:04 +0000 (16:28 +0000)]
Extract the (InputKind, std::string) pair used to describe inputs to
the front end into its own class, FrontendInputFile, to make it easier
to introduce new per-input data. No functionality change.
Ted Kremenek [Fri, 20 Jan 2012 01:44:29 +0000 (01:44 +0000)]
Turn 'SecuritySyntaxChecker' into a "meta" security checker for insecure APIs. Now
multiple checks are exposed as separate checkers, but CheckerManager only creates
one Checker object.
Eli Friedman [Fri, 20 Jan 2012 01:26:23 +0000 (01:26 +0000)]
Remove PotentiallyPotentiallyEvaluated, and replace it with a much simpler and less error-prone way of handling the relevant cases. Towards marking of whether a declaration is used more accurately.
Richard Smith [Wed, 18 Jan 2012 23:55:52 +0000 (23:55 +0000)]
constexpr: converted constant expression handling for enumerator values, case
values and non-type template arguments of integral and enumeration types.
This change causes some legal C++98 code to no longer compile in C++11 mode, by
enforcing the C++11 rule that narrowing integral conversions are not permitted
in the final implicit conversion sequence for the above cases.
Kaelyn Uhrain [Wed, 18 Jan 2012 21:41:41 +0000 (21:41 +0000)]
Convert SemaDecl.cpp to pass callback objects to CorrectTypo.
Includes tests highlighting the cases where accuracy has improved
(there is one call that does no filtering beyond selecting the set
of allowed keywords, and one call that only triggers for ObjC code
for which a test by someone who knows ObjC would be welcome). Also
fixes a small typo in one of the suggestion messages, and drops a
malformed "expected-note" for a suggestion that did not occur even
when the malformed note was committed as r145930.
Douglas Gregor [Wed, 18 Jan 2012 20:56:22 +0000 (20:56 +0000)]
Optimize unqualified/global name lookup in modules by introducing a
generational scheme for identifiers that avoids searching the hash
tables of a given module more than once for a given
identifier. Previously, loading any new module invalidated all of the
previous lookup results for all identifiers, causing us to perform the
lookups repeatedly.
Seth Cantrell [Wed, 18 Jan 2012 12:27:04 +0000 (12:27 +0000)]
Improves support for Unicode in character literals
Updates ProcessUCNExcape() for C++. C++11 allows UCNs in character
and string literals that represent control characters and basic
source characters. Also C++03 allows UCNs that refer to surrogate
codepoints.
UTF-8 sequences in character literals are now handled as single
c-chars.
Added error for multiple characters in Unicode character literals.
Added errors for when a the execution charset encoding of a c-char
cannot be represented as a single code unit in the associated
character type. Note that for the purposes of this error the asso-
ciated character type for a narrow character literal is char, not
int, even though in C narrow character literals have type int.
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